| Place Name | Grand Plain Township |
| Place Type | Township |
| ZIP Code(s) | 56725 56727 56738 |
| County | Marshall County |
| Area Code(s) | 218 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 37 |
| Majority Ethnicity | White 97.3% |
| US Congressional District(s) | Minnesota 7th |
| State House Districts | 01A |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.3% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 2.7% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |